---
id: CVE-2026-110634
title: >-
  git-diff before 2.0.7 contains an OS command injection vulnerability that
  allows attackers to execute shell commands by supplying crafted strings to the
  gitDiff API
summary: >-
  git-diff before 2.0.7 contains an OS command injection vulnerability that
  allows attackers to execute shell commands by supplying crafted strings to the
  gitDiff API. Attackers who control a diffed document string can embed $(cmd)
  or back…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:17:35.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110634'
references:
  - url: 'https://github.com/danday74/git-diff'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/danday74/git-diff/blob/a85a649badc4c6bba991e87e82382b7d3cdd6634/js/gitDiffReal/generateDiff/index.js#L26-L30
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/danday74/git-diff/commit/bfd727b6cf1daa671c3528d1d681f55b70e8fb19
    label: disclosure@vulncheck.com
  - url: 'https://github.com/danday74/git-diff/pull/16'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/git-diff-before-2.0.7-os-command-injection-via-gitdiff-input-strings
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-14T15:36:14.013Z'
---

## Overview

git-diff before 2.0.7 contains an OS command injection vulnerability that allows attackers to execute shell commands by supplying crafted strings to the gitDiff API. Attackers who control a diffed document string can embed $(cmd) or backtick substitutions that shelljs.exec evaluates, running commands with Node.js process privileges.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.